Which Cardiac Patient Is Unstable? (NGN

Stability is defined by perfusion + work of breathing + rhythm risk + trend, not a single “normal” number. Red flags include new confusion, rising lactate, narrow pulse pressure, cold clammy skin, crackles with hypoxia, recurrent ventricular ectopy, ST changes, and access site hemorrhage. This lesson builds a checklist you can apply in matrix drag-and-drop and bow-tie style items.